MPs are now voting on the key customs union amendment - new clause 18. (See 11.25am.)

The fact that Theresa May lost on the Phillip Lee amendment (exquisite revenge for someone who resigned over the EU withdrawal bill, but was made to look a little foolish when the government compromised only hours later) suggests the government will lose this vote too.

The government has lost the vote on Phillip Lee’s amendment, saying the government should have to negotiate an agreement for the UK participate in the European medicines regulatory network partnership between the EU. (See 5.46pm) The amendment was passed by 305 votes to 301 - a majority of four.

Extreme verbal bullying by Tory whips of their MPs in full flow now, threatening all kinds of nonsense if Tory MPs don’t capitulate to the ERG like the PM. Noticeable that Tory whips treat the Tory pro-European sensibles very differently to the ERG Brextremists #TradeBill

And this is what Nicky Morgan, the former Conservative education secretary, said in her speech earlier. (See 5.59pm.)

The prime minister did the right thing by putting on the table a workable, practical proposal, captured at Chequers, which could be negotiated with the EU. Members of these benches chose to try to scupper that agreement and those proposals yesterday. Some of us tried to stop them. Sadly we failed. What is proposed in new clause 18, and I’m delighted to join [Stephen Hammond] in proposing this, is something that is eminently sensible. We give the prime minister space for those negotiations. But it is very clear that in this House there is a majority for a customs union to safeguard business and jobs and the financial interests of our constituents in the future.

I’ve beefed up the earlier post at 5.43pm, covering the Stephen Hammond/George Hollingbery exchanges (fascinating - they were negotiating in real time, on the floor of the chamber) with direct quotes. To get them to show up, you may need to refresh the page.